57039557768 has 36 divisors (see below), whose sum is σ = 113633242485. Its totient is φ = 26836740736.

The previous prime is 57039557741. The next prime is 57039557789. The reversal of 57039557768 is 86775593075.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 52204024324 + 4835533444 = 228482^2 + 69538^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=168878.

It is a super-2 number, since 2×57039557768² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57039557768.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11481221 + ... + 11486187.

Almost surely, 2^57039557768 is an apocalyptic number.

It is an amenable number.

57039557768 is a deficient number, since it is larger than the sum of its proper divisors (56593684717).

57039557768 is an frugal number, since it uses more digits than its factorization.

57039557768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9974 (or 4986 counting only the distinct ones).

The product of its (nonzero) digits is 55566000, while the sum is 62.

The spelling of 57039557768 in words is "fifty-seven billion, thirty-nine million, five hundred fifty-seven thousand, seven hundred sixty-eight".